Improvement in take-ups for sewing-machines



w. v. PERRY.

Take-up for Sewing Machines.

No. 39,454. Patented Aug. 4, 1863.

u inn-ms. Pub-Lithographer. Wnhinglon. 04 c.

UNITED ST TES PATENT Grantee WM. V, PERRY, OF BURNETT, WISCONSIN.

IMPROVEMENT IN TAKE-UPS F OR SEWlNG-MAQHINES.

Specification forming part of Letters Patent No. 39,454, dated August 4, 1863.

To all whom it may concern:

Be it known that I, WILLIAM V. PERRY, of Burnett, in the county of Dodge and State of Wisconsin, have invented a new and 1111- proved Adjustable Take-Up for Sewing-Machines; and I do hereby declare the following to be a full and-exact description of the same,

lated in the degree of its elasticity by means of a sliding strap or other device which will serve to vary the free or working length of the said elastic rod.

In order that others skilled in the art to which my invention ap pertains may be enabled to fully understand and use the same, I will proceed to describe its construction and operation.

A represents an elastic rod, attached atato a rigid bar, 13, and provided nearits other end with an eye, a, through which the needle-thread is to be passed.

0 represents a strap or band iuc'lo'sing the rod A and bar B, and adapted to slide longitudinally thereon, so as to vary the free length of the former.

D may represent a part of the stationary frame of a Singer sewing-machine.

-E is a standard, the slotted end of which receives the end b of the bar B, which may be formed with a book, as shown, to pass under a pin, 0, which constitutes a pivot or fulcrum upon which the said oar turns.

F may represent the stationary guide of the needle-bar, and G an adjustable yoke rising therefrom and limiting the upward motion of the bar B.

H represents the needle-carrier, and I a yoke rising therefrom and inclosing the bar B, so as to draw the latter down at each descent of the needle.

K is a spring, which restores the bar B to its upper position when released.

The yokes G and I may be attached adj ustably by screws g and i,'so as to admit ofregu lating the height to which they project above the guide G and needle-bar I, respectively, and thus control the motion of the bar B as ma be required.

The operation of the device is as follows: The needle-thread is passed through the eye a, as before stated. For fine work, where it is necessary to exert but little force in drawing the thread, the band C is set back to the position shown in the drawings, or even nearer to the rear end, a. The red A is thus adapted. to yield and play with the greatest possible freedom and delicacy. With coarser thread, or with work requiring the thread to bedrawn with greater force, the band maybe set to the outer'end of the rod A, or in any intermediate position, as illustrated in dotted lines. At each descent of the needle the barB is drawn down by the yoke I, carrying with it the rod A, which rests close against its under side. As the needle-bar II rises the bar B is released, and is then carried up by the spring K, taking up the slack ot' the thread and drawing it tightly through the cloth in customary manner. Instead, however, of the thread being drawn up with a sudden force equal in all kinds of work, the interposition of the elastic rod A modifies and tempers the strain, so that thethread can be drawn much more tightly without danger of breaking, and by the use of the sliding band or strap 0 the force and rigidity of the tension can be regulated as required.

With machines of other construction than that here illustrated and referred toas,forinstance, those known as the VVheeler-& Wilson and Grover&Bakerpatterns,iu which the needle is carried by a. horizontal pivoted barthe bar B may be secured upon the upper side of the said needle-bar (at a sufficient distance therefrom to permit the play of the rod A) by means of a pin or post formed by bending the end I) of the bar A at right angles, as illustrated by dotted linesin Fig. 1. ldo not, h0wever,limit myself to these, or to any other specific manner of connecting my improved take-up to a sewing-machine, but propose to attach itin any way which future experience or the particularconstruction ofthe maehinelnay The combination of the elastic rod A, bar show to be desirable. Neither do 1 limit my- B, and shifting-strap 0, arranged and operatself to any particular construction of the ading substantially as and for the purposes set justable confining device 0. This may be proforth.

vided with a set-screw or may consist of a I T clamp of any suitable form. X PERRY Witnesses: 1 CHARLES SMITH,

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is- 

